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MapServiceExtensions.ApproximateBoundingBox Method (IBoundingBox, String, String, Int32, Double)

Transforms a bounding box from one CRS to another.

Namespace:  Ptv.XServer.Controls.Map.Tools.Reprojection
Assembly:  Ptv.XServer.Controls.Map (in Ptv.XServer.Controls.Map.dll) Version: 1.7.10.0
Syntax
Copy
public static MapRectangle ApproximateBoundingBox(
	this IBoundingBox boundingBox,
	string sourceCrs,
	string targetCrs,
	int nSupportingPoints,
	double resizeFactor
)

Parameters

boundingBox
Type: Ptv.XServer.Controls.Map.Tools.Reprojection.IBoundingBox
Bounding box to transform.
sourceCrs
Type: System.String
The source CRS.
targetCrs
Type: System.String
The target CRS.
nSupportingPoints
Type: System.Int32
Number of supporting points to use.
resizeFactor
Type: System.Double
An additional factor for resizing the resulting bounding box; <0 for adding an offset based on side line deviations, >0 for simply resizing the resulting box.

Return Value

Type: MapRectangle
The transformed bounding box.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IBoundingBox. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).
Remarks
This is extension does not only transform the corner points of a given bounding box but takes into account that the bounds may be distorted when being transformed to another CRS.
See Also